FSH4917 FOSLINK | Alldatasheet
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M I C R O POWER, ULTRA-SENSITIVE HALL SWITCH 2006-12-22 1/9 FSH4917 FUNCTIONAL BLOCK DIAGRAM TYPICAL APPLICATION CIRCUIT GENERAL DESCRIPTION The FSH4917 is an Integrated Hall Effect Sensor designed specifically to meet the requirements of low- power devices. e.g. as an On/Off switch in Cellular Flip-Phones, with battery operating voltages of 2.4V – 5.5V. Precise magnetic switching points and high temperature stability are achieved through the unique design of the internal circuit. An onboard clock scheme is used to reduce the average operating current of the IC. During the operate phase the IC compares the actual magnetic field detected with the internally compensated switching points. The output is switched at the end of each operating phase. During the Stand-by phase t he output stage is latched and the current consumption of the device reduced to some µA. The IC switching behavior is Omni polar, i.e. it can be switched on with either the North or South pole of a magnet. The PRG pin can be connected to V DD which holds the output V O at a High level for B=0mT; conversely the output V O can be inverted by connecting the PRG pin to GND, which will hold the output V O at a Low level for B=0mT. In this late r case the presence of an adequate magnetic field will cause the output V O to switch to a High level (i.e. off state). FEATURES z Micro power design z Operation with North or South pole(omni polar) z 2.4V to 5.5V battery operation z High sensitivity and high stability of the magnetic switching points z High resistance to mechanical stress z Digital output signal z Good RF noise immunity z -40 ℃ to 85℃ operating temperature z Programming pin for switching detection of output z Package: SOT23-6L Awake & Sleep Timing Logic Dynamic Offset Cancellation Hall Plane Chopper Amplifier Hysteresis Latch VOUT GND VDD Latch circuit PRG 6 5 4 1 2 3 FSH4917 2.4-5.5V 0.1μF 50KΩ PRG GND GND GNDVco Vout Output
M I C R O POWER, ULTRA-SENSITIVE HALL SWITCH 2006-12-22 2/9 FSH4917 PIN CONFIGURATION (Top View) ABSOLUTE MAXIMUM RATINGS Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device TYPICAL IR SOLDER-REFLOW PROFILE Lead Temperature (Soldering, 10sec)┄┄┄┄┄+260℃ Pin Symbol Function
1 VDD Supply Voltage
2 GND Ground
3 OUTPUT Signal Output (Open Drain)
4 GND Ground
5 GND Ground
6 PRG Programming Input
Parameter Symbol Maximum Unit Supply Voltage V DD 5.5 V Supply Current I DD 2.5 mA Output Voltage V O 5.5 V Output Current I O 1 mA PRG Input voltage V PRG 5.5 V Operating Temperature Range T OP -40 to 85 ℃ Junction Temperature T J -40 to 150 ℃ Storage Temperature T STG -40 to 150 ℃ Magnetic Flux Density B unlimited mT Power Dissipation P D 230 mW 2 3 6 54 VDD GND OUTPUT PRG GND GND SECOND ROOM TEMP 2~5℃/sec 2~5℃/sec 150±10℃ 90±30sec 255±5℃ 10±1sec Soldering Condition
M I C R O POWER, ULTRA-SENSITIVE HALL SWITCH 2006-12-22 3/9 FSH4917 RECOMMENDED OPERATING RANGE 1). A Ceramic Bypass Capacitor of 0.1uF at VDD to GND is highly recommended. ELECTRICAL CHARACTERISTICS 1) Operating voltage is 2.7V. MAGNETIC CHARACTERISTICS PRG connected to VDD PRG connected to GND Note: If not other specified, typical characteristics apply at TA = 25 °C and VDD = 2.7 V Parameter Symbol Min. Typ. Max. Unit Supply Voltage1) V DD 2.4 2.7 5.5 V Output Voltage V O -0.3 2.7 5.5 V Ambient Temperature T A -40 25 85 ℃ Operating Time T OP - 56 - us Standby Time T STB - 140 - ms Duty Cycle T OP / TSTB - 0.04 - % Parameter Symbol Test Condition Min. Typ. Max. Unit Averaged Supply Current I DD(AVG) - 3 1) 20 uA Supply Current During Operating Time IDD(OP) - 1.1 1) - mA Supply Current During Standby Time IDD(STB) - 2.5 1) - uA Output Saturation Voltage V O(SAT) I O=1mA - 0.1 0.3 V Output Leakage Current I O(LEAK) - 0.01 1 uA Parameter Symbol Min. Typ. Max. Unit BOPS 40 55 70 G Operate Points (Output ON) BOPN -70 -55 -40 G BRPS 30 45 60 G Release Points (Output OFF) BRPN -60 -45 -30 G Hysteresis B HYS 5 10 15 G Parameter Symbol Min. Typ. Max. Unit BOPS 30 45 60 G Operate Points (Output ON) BOPN -60 -45 -30 G BRPS 40 55 70 G Release Points (Output OFF) BRPN -70 -55 -40 G Hysteresis B HYS 5 10 15 G
M I C R O POWER, ULTRA-SENSITIVE HALL SWITCH 2006-12-22 4/9 FSH4917 TIMING DIAGRAM PROGRAMMING OF OUTPUT WITH PRG PIN P R G c o n n e c t e d t o V D D P R G c o n n e c t e d t o G N D Latch Output t Operating Time TOP TSTB TOP IDD IDD(OP) IDD(AVG) IDD(STB) 56us 140ms BOPSBRPSBRPNBOPN B VOUT VOH VOL Turn ON Turn OFF BOPSBRPSBRPNBOPN B VOUT VOH VOL Turn ON Turn OFF
M I C R O POWER, ULTRA-SENSITIVE HALL SWITCH 2006-12-22 5/9 FSH4917 TYPICAL PERFORMANCE CHARACTERISTICS T [oC] -40 B[G] - 2 00 2 04 06 08 0 -80 -60 -40 -20 BOPS BRPS BRPN BOPN Magnetic switching points versus temperature (VDD=2.7V) VDD [V] 2.5 IDD[uA] 3 3.5 4 4.5 5 5.5 Average current versus supply voltage T [oC] -40 IDD[uA] -20 0 20 40 60 80 Average current versus temperature (VDD=2.7V) VDD [V] 2.5 B[G] 3 3.5 4 4.5 5 5.5 -80 -60 -40 -20 BOPS BRPS BRPN BOPN Magnetic switching points versus supply voltage
M I C R O POWER, ULTRA-SENSITIVE HALL SWITCH 2006-12-22 6/9 FSH4917 ORDERING INFORMATION MARKING INFORMATION AXYXX Internal Code Date Code: Y: Year (1=2001) Part Number: FSH4917 MP Version: A~Z FSH4917XXX Package: C: SOT23-6L Packing: A: Tape & Reel Temperature Grade: D: -40~85℃
M I C R O POWER, ULTRA-SENSITIVE HALL SWITCH 2006-12-22 7/9 FSH4917 PACKAGE INFORMATION A 2.90 Ref. 0.114 Ref. B 2.80 Ref. 0.110 Ref. C 1.60 Ref. 0.063 Ref. D 0.30 0.50 0.012 0.020 E 0.15 0.006 F 0 o o o o o o G 1.90 Ref. 0.075 Ref. I 0.08 0.22 0.003 0.009 K 0.60 Ref. 0.024 Ref. L 0.95 Ref. 0.037 Ref. 1 2 3 6 5 4 C B A G L L D H E J K 0.20 I F
M I C R O POWER, ULTRA-SENSITIVE HALL SWITCH 2006-12-22 8/9 FSH4917 PACKING INFORMATION 1）Embossed Plastic Tape Dimension (mm) Model A B C D E F I Dimension (mm) Model G H Ao Bo Ko t FSH4917 MAX. 3 o MAX. 3 o A B C DE F “A” “B” I Ao t G DETAIL “A” Bo Ko H DETAIL “B”
M I C R O POWER, ULTRA-SENSITIVE HALL SWITCH 2006-12-22 9/9 FSH4917 2) Taping Size unit: pcs Model Symbol Taping Count Packing Tape FSH4917 5” Reel 2500 Embossed Plastic Tape 3) Reel Dimension unit: mm Model Reel A B C D W1 W2 Packing Type: 2500 EA / REEL, 5 REEL / BOX 40PCS(MIN.) 2500PCS 40PCS(MIN.) TAPE SEALING END START D A B C